SMIM18

small integral membrane protein 18

Basic information

Region (hg38): 8:30638580-30646064

Links

ENSG00000253457 ∙ NCBI:100507341 ∙ ∙ HGNC:42973 ∙ Uniprot:P0DKX4 ∙ AlphaFold ∙ GenCC ∙ jax ∙ Sfari ∙ GnomAD ∙ Pubmed ∙ ClinVar

Phenotypes

GenCC

Source: genCC

No genCC data.

ClinVar

This is a list of variants' phenotypes submitted to ClinVar and linked to the SMIM18 gene.

Variants pathogenicity by type

Statistics on ClinVar variants can assist in determining whether a specific variant type in the SMIM18 gene is commonly pathogenic or not.

In the table, we include only reliable ClinVar variants with their consequences to MANE Select, Mane Plus Clinical transcripts, or transcripts with TSL equals 1. Click the count to view the source variants.

Warning: slight differences between displayed counts and the number of variants in ClinVar may occur, primarily due to (1) the application of a different transcript and/or consequence by our variant effect predictor or (2) differences in clinical significance: we classify Benign/Likely benign variants as Likely benign and Pathogenic/Likely pathogenic variants as Likely pathogenic.

Variant type	Pathogenic	Likely pathogenic	VUS	Likely benign	Benign	Sum
synonymous						0
missense			5	1		6
nonsense						0
start loss						0
frameshift						0
inframe indel						0
splice donor/acceptor (+/-2bp)						0
splice region						0
non coding						0
Total	0	0	5	1	0

Variants in SMIM18

This is a list of pathogenic ClinVar variants found in the SMIM18 region.

You can filter this list by clicking the number of variants in the Variants pathogenicity by type table.

Position	Type	Phenotype	Significance	ClinVar
8-30645359-T-C		not specified	Uncertain significance (Jan 23, 2024)
8-30645362-G-C		not specified	Uncertain significance (Nov 30, 2022)
8-30645457-G-A		not specified	Uncertain significance (Sep 09, 2021)
8-30645458-T-C			Likely benign (Feb 01, 2024)
8-30645518-T-C		not specified	Uncertain significance (Jun 28, 2023)
8-30645530-A-G		not specified	Uncertain significance (Nov 21, 2023)
8-30645560-T-C		not specified	Uncertain significance (Apr 12, 2024)

GnomAD

Source: gnomAD

Gene	Type	Bio Type	Transcript	Coding Exons	Length
SMIM18	protein_coding	protein_coding	ENST00000517349	1	7465

pLI Probability LOF Intolerant	pRec Probability LOF Recessive	Individuals with no LOFs	Individuals with Homozygous LOFs	Individuals with Heterozygous LOFs	Defined	p
0.169	0.654	0	0	0	0	0.00

	Z-Score	Observed	Expected	Observed/Expected	Mutation Rate	Total Possible in Transcript
Missense	0.979	29	48.1	0.603	0.00000228	630
Missense in Polyphen		3	11.119	0.26982		138
Synonymous	1.71	8	17.0	0.471	8.12e-7	174
Loss of Function	0.812	1	2.34	0.427	9.82e-8	33

LoF frequencies by population

Ethnicity	Sum of pLOFs	p
African & African-American	0.00	0.00
Ashkenazi Jewish	0.00	0.00
East Asian	0.00	0.00
Finnish	0.00	0.00
European (Non-Finnish)	0.00	0.00
Middle Eastern	0.00	0.00
South Asian	0.00	0.00
Other	0.00	0.00

dbNSFP

Source: dbNSFP

Haploinsufficiency Scores

• ghis: 0.546

Essentials

• essential_gene_CRISPR: N
• essential_gene_CRISPR2: N

Gene Damage Prediction

	All	Recessive	Dominant
Mendelian	Medium	Medium	Medium
Primary Immunodeficiency	Medium	Medium	Medium
Cancer	Medium	Medium	Medium

Mouse Genome Informatics

• Gene name: Smim18

Gene ontology

• Cellular component: integral component of membrane